Estimation of zero-intelligence models by L1 data

A unit volume zero-intelligence (ZI) model is defined and the distribution of its L1 process is recursively described. Further, a generalized ZI model allowing non-unit market orders, shifts of quotes and general in-spread events is proposed and a formula for the conditional distribution of its quotes is given, together with a formula for price impact. For both the models, MLE estimators are formulated and shown to be consistent and asymptotically normal. Consequently, the estimators are applied to data of six US stocks from nine electronic markets. It is found that more complex variants of the models, despite being significant, do not give considerably better predictions than their simple versions with constant intensities.     

A note on Deaton's theorem on the undesirability of nonuniform excise taxation

The paper provides an extension and a new proof of Deaton's theorem on the undesirability of nonuniform excise taxation when income taxes are affine and preferences over consumption goods are separable from labour–leisure choices, homothetic, and identical across agents.     

Time-varying risk in the German stock market

This paper compares two specifications of the Capital Asset Pricing Model for a sample of German stocks. The specifications generate time-varying first and second moments by conditioning on past information. This explicit modelling of the time series behaviour of risk allows us to characterize the driving factors of variances and covariances of returns. In addition to a variety of diagnostic tests we evaluate the validity of the one-factor restriction in the CAPM. The main findings are that risk is time dependent and very variable and also that more than one factor is needed to fit the data set.     

Strategic management accounting in close inter-organisational relationships

This paper provides a conceptual comparison between the ‘mainstream strategic management accounting’ literature, the ‘accounting and strategising’ literature and ‘strategic management accounting (SMA) in close inter-organisational relationships’. It concludes that ‘SMA in close inter-organisational relationships’ shares some important characteristics with the ‘accounting and strategising’ literature. Important differences were found, too, though. These mainly concerned the need to understand individuals working for close partners as preparers of strategic information; the need for disaggregated accounting information about unique connections to close partners and about the role of indirect benefits that follow from close connections and the need for the company to not only collect information but also disperse diverse information within close inter-organisational relationships. Through an intensive case study of a global robot manufacturer, Robotics, this paper also provides novel empirical evidence on ‘SMA in close inter-organisational relationships’. For instance, SMA practices included indirect benefits, something mainly neglected in the existing literature on SMA. These indirect benefits involved a close customer's willingness to invest time and effort in Robotics’ technological development, thereby contributing to Robotics’ ability to attain revenue gains in its interactions with other customers. Our findings also have important implications for the ‘inter-organisational accounting’ literature, for instance, by highlighting the need to link more explicitly strategic decision-making with the current interest in the role of accounting in inter-organisational dynamics.     

The role of a firm's strategic orientation dimensions in determining market orientation

Little is known about how various strategic orientation dimensions determine market orientation. The authors identify four key dimensions of a firm's strategic orientation as critical antecedents to market orientation: the firm's aggressiveness, its future orientation, the extent of marketing formalization, and risk proclivity. Moderating effects of two environmental forces, competitive intensity and technology turbulence, are also considered in light of their relationship with various dimensions of strategic orientation and market orientation. Using a survey with firms spanning multiple industries, the proposed effects are tested with latent class analysis with multiple regimes. The results, based on an optimal two-regime solution, show that that although market orientation is significantly impacted by these strategic orientation dimensions, the pattern of influence differs based on a firm's membership in one of two regimes.     

International market selection strategies of manufacturing and services firms

This paper discusses the entrepreneurial landscape in Africa and locates a new generation of African entrepreneurs and their business networks within it. Unlike others in that landscape (i.e. micro- or small-scale informal sector vendors, and traditional or multinational large-scale formal sector firms), the ‘new generation’ entrepreneurs are business globalists who organized a system of business enterprise networks consisting of national, regional, and pan-African organizations. The study analyses interview data from 57 men and women network members from 10 countries (Botswana, Ethiopia, Ghana, Kenya, Mali, Senegal, South Africa, Uganda, Zambia, and Zimbabwe). Some defining characteristics of these entrepreneurs are interactive social and business relationships, use of modern management methods and information technology, trust among fellow members, transparent business practices, advocacy on behalf of the private sector, and commitment to increasing intra-African commerce. Their mission is to improve the climate for private sector business in Africa and to promote regional economic integration. They pursue cross-national commercial ventures, maintain official observer status at established regional economic organizations, sign memoranda of understanding with multilateral agencies, establish venture capital funds, and help to change government policies. The paper identifies characteristics of the ‘new generation’ entrepreneurs, evaluates goals and achievements of their networks, and concludes that despite limitations, these entrepreneurs and their organizations have created intra- and cross-national networks that strengthen private-sector-led economic growth in Africa.     

Gold,liquidity and secured loans in a multistage economy

A multistage economy with durables with finite and with unbounded lives is considered. The importance of the existence of both asset and rental markets is considered. It is shown that without rental markets efficiency may not be achieved and a stationary state that might exist with rental markets need not exist. The meaning of the existence of a 100% backed loan is considered. The roles of gold and land as stores of value and money are considered.Research supported in part by ONR Grant N00014-86-K-0220 and by NSF Grant No. SES-8812051.     

What is different about urban activities of those with access to ICTs? Some early evidence from Québec,Canada

The first wave, conducted in 2002–2003, of an in-depth panel survey in Quebec City, was used to compare the out-of-home activities of adults who had the use of mobile phones, or of internet at home, to those who did not. A unique feature of the survey was the inclusion of respondents’ perceptions of the both the temporal and the spatial flexibility of all executed activities. We find, after statistical controls for other factors, that mobile phone use was positively associated with activity and trip levels, while internet access was negatively associated. These two ICTs also had mostly opposite relationships with the routinisation and pre-arrangement of activities and with some conventionally defined sub-classes of activity.     

Banks, markets, and efficiency

A competitive financial system can help reduce banks’ monopoly power and the associated inefficiencies. However, according to Diamond (J Polit Econ 105: 928–956, 1997) and Fecht (J Eur Econ Assoc 6(2), 2004) competition with the financial sector may also constrain the amount of liquidity insurance that banks can provide to households affected by unobservable idiosyncratic liquidity shocks. To study this trade-off, we model competition between banks and between banks and financial markets. Our analysis shows that competition between banks and financial markets can constrain the risk-sharing offered by deposit contracts. This effect is the same if competition between banks mainly affects the reallocation of deposits. However, if banking competition primarily affects new deposits, then such competition only limits inefficient monopoly rents without restraining risk-sharing. We would like to thank Diemo Dietrich, Phil Dybvig, Hans Peter Grüner, Martin Hellwig, Elu von Thadden, Uwe Vollmer, Wolf Wagner as well as seminar participants at the Bundesbank, at the University of Mannheim, at the University of Tilburg, at the 3rd Workshop on Monetary and Financial Economics in Halle, at the University of Lausanne, at the First ProBanker Symposium in Maastricht, at the Global Finance Conference 2005 in Dublin, at the European Economic Association Meeting 2005 in Amsterdam, at the International Finance Conference 2005 in Copenhagen, and at the German Economic Association Meeting 2005 in Bonn. We thank Mike Demott for editorial assistance. The views expressed here are those of the authors and not necessarily those of the Deutsche Bundesbank, the Federal Reserve Bank of New York, or the Federal Reserve System.